<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>2-05 折线polyline</title>
</head>
<body>
  <svg width="300" height="300">
    <!--
      points: 点集
      fill: 填充色，默认填了黑色
      stroke: 描边颜色
    -->
    <polyline
      points="10 10, 200 80, 230 230"
      stroke="#000"
      fill="none"
    >
    </polyline>
  </svg>
</body>
</html>